sx1509: Raise an error if a pin max_duration is not zero

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-10-27 12:22:23 -04:00
parent c3f916c60e
commit 4f89251f03
1 changed files with 8 additions and 1 deletions

View File

@ -111,15 +111,20 @@ class SX1509_digital_out(object):
self._bitmask = 1 << self._sxpin
self._pin = pin_params['pin']
self._invert = pin_params['invert']
self._mcu.register_config_callback(self._build_config)
self._start_value = self._shutdown_value = self._invert
self._is_static = False
self._max_duration = 2.
self._set_cmd = self._clear_cmd = None
# Set direction to output
self._sx1509.clear_bits_in_register(REG_DIR, self._bitmask)
def _build_config(self):
if self._max_duration:
raise pins.error("SX1509 pins are not suitable for heaters")
def get_mcu(self):
return self._mcu
def setup_max_duration(self, max_duration):
pass
self._max_duration = max_duration
def setup_start_value(self, start_value, shutdown_value, is_static=False):
if is_static or shutdown_value:
raise pins.error("SX1509 Pins should not be declared static or have a shutdown value")
@ -167,6 +172,8 @@ class SX1509_pwm(object):
def _build_config(self):
if not self._hardware_pwm:
raise pins.error("SX1509_pwm must have hardware_pwm enabled")
if self._max_duration:
raise pins.error("SX1509 pins are not suitable for heaters")
# Send initial value
self._sx1509.set_register(self._i_on_reg, ~int(255 * self._start_value) & 0xFF)
self._mcu.add_config_cmd("i2c_write oid=%d data=%02x%02x" % (